Alinco DR-61 OT/E, Service Manual

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DR-61 OT/E
Service Manual
CONTENTS
• SPECIFICATIONS
1 ) General...........................................2
2) Transmitter........................................2
3) Receiver...........................................2
• CIRCUIT DESCRIPTION
1 ) Receiver System..............................3 -
8
2) Transmitter System............................... 9
3) PLL Circuit................................. .10-11
4) Front CPU and Peripheral Circuit........ 11 ~ 12
5) Sub CPU and Peripheral Circuit...........12 ~ 13
6
) CTCSS Tone Encoder Circuit.................. 13
7) Packet Circuit.................................... 14
8
) Front CPU I/O Port (IC501 )................15-16
9) Main CPU I/O Port (IC601)............... 17 ~ 18
• SEMICONDUCTOR DATA
1) AN8010M........................................ 19
2) BU4094BF....................................... .19
3) L78LR05D....................................... 20
4) LA4445...........................................20
5) M56760FP....................................... 21
6
) M57788MR...................................... 22
7) MC7808..........................................23
8
) NJM4066B....................................... 23
9) NJM2902M (T1).................................23
10) NJM4558........................................ 24
11 ) RH5VA60AA..................................... 24
12
) nPC1676G....................................... 24
13) S-AV17...........................................25
14) TC4S11F........................................ 26
15) TC4S66F........................................ 26
16) TC4W53F........................................26
17) TC9154AP....................................... 27
18) TC95219F....................................... 28
19) TC35305F (TP1).................................29
20) TK10489M....................................... 30
21) TK10930VTL.................................... 31
22) Transistor, Diode and LED Outline Drawings... 32
23) LCD....................................... 33-34
• EXPLODED VIEW
1 ) Front View....................................... 35
2) LCD View........................................ 35
3) VHF Unit View...................................36
4) UHF Unit View...................................37
Dv
A L I N C O E L E C T R O N I C S I N C .
• PARTS LIST
VHF MAIN Unit............................ 38-40
UHF MAIN Unit............................. 40-42
VOL Unit..........................................42
FRONT CPU Unit.......................... 44-43
SUB CPU Unit.............................. 50- 45
VHF VCO Unit....................................45
VHF PLL Unit.................................... 45
UHF VCO Unit....................................46
UHF PLL Unit...............................54 - 46
AIR Unit...........................................46
ENC Unit......................................... 47
SP Unit........................................... 47
FAN Unit......................................... 47
Packet............................................
47
Mechanical Parts................................
47
PCB...............................................
47
Packing...........................................
47
EHM35B..........................................
47
EHM39...........................................
48
• ADJUSTMENT
1) Required Test Equipment.......................49
2) Adjustment Points..........................50 — 51
3) UHF RX Adjustment............................. 52
4) UHF TX Adjustment............................. 53
5) VHF RX Adjustment............................. 54
6
) VHF TX Adjustment.............................
55
• PC BOARD VIEW
1) VHF MAIN/AIR Unit Side A..................... 56
2) VHF MAIN/AIR Unit Side B..................... 57
3) UHF MAIN/ENC/VOL Unit Side A.............. 58
4) UHF MAIN/ENC/VOL Unit Side B.............. 59
5) Front CPU Unit Side A.......................... 60
6
) Front CPU Unit Side B.......................... 60
7) SUB CPU Unit Side A........................... 61
8 ) SUB CPU Unit Side B........................... 61
9) VHF VCO Unit................................... 62
10) VHF PLL Unit.................................... 62
11) UHF VCO Unit................................... 62
12) UHF PLL Unit....................................62
• BLOCK DIAGRAM
1) Main Block Diagram............................. 63
2) CPU Block Diagram............................. 64
3) PLL Block Diagram.............................. 65
• SCHEMATIC DIAGRAM
1) VHF MAIN UNIT........................... 66-67
2) UHF MAIN UNIT........................... 68-69
3) FRONT CPU UNIT..............................70
4) SUB CPU Unit................................... 71
5) VHF VCO, PLL Unit............................. 72
6
) UHF VCO, PLL Unit............................. 73
7) ENC Unit......................................... 74
8
) EHM35B......................................... 75
9) EHM39............................................75